GBit/s-PULSE PROPAGATION IN MICROSTRIP DISCONTINUITIES Wolfgang Menzel ABSTRACT: In the last years, a variety of microstrip discontinuities have been analysed using a waveguide model with frequency dependent parameters. This contribution shows an application of these calculation techniques to fast digital signal analysis of baseband and carrier frequency circuits in microstrip. The signals a

1.2 GBit/s PSEUDO MULTIPLEXING WITH RANDOM PULSE GENERATOR GaAs MESFET GATES USING Carsten Hede * ABSTRACT A l.2 Gbit/s RZ pseudo random bit generator 200 Mbit/s channels, and a GaAs-MESFET gate high speed and simplicity are presented. using multiplexing of six circuit which exhibits both As a new contribution to the treatment of pseudo random sequences it is shown how the autocorrelation f

PSEUDO RANDOM SEQUENCE AND PROGRAMMABLE WORD GENERATORS UP TO 10 GBIT/S R. Schwarte, R. Sinning ABSTRACT B. Brinkmeier, J. Fischer, H. Koppenhofer, K.H. Narzinski, A word generator concept based upon the SSL-principle (Series-gate Sampling Line) has been found to provide the highest bit rate in pseudo-random and programmable word generation so far experimentally attained. Computer optimized

MICROWAVE FREQUENCY DIGITAL CIRCUITS USING GaAs MESFET'S WITH A PLANAR SELF-ALIGNED Michel TECHNOLOGY+ Jean-Paul CHANE, Gilles DURAND, Michele GAVANT* CATHELIN, ABSTRACT This paper describes some circuits realised with the first generation of GaAs integrated logic circuits family. Intended for maximum speed, this family is based upon normally on field effect transistors and Schottky dio

MICROWAVE FET's - WHAT's NEXT? Charles A. Liechti* ABSTRACT Over the last decade, GaAs FET's have made dramatic advances in and efficient power amplification. These advances are highlighted possible pathways for future developments are shown. Looking further ahead, it is important to the key to microwave monolithic-integrated IC's today, and where do we go from here?" briefly covered in this p



APPLICATION OF TWO GROUND-BASED MICROWAVE RADIOMETERS FOR INDIRECT DETERMINATION OF THE TEMPERATURE PROFILE OF THE ATMOSPHERIC BOUNDARY LAYER B. Schonwald ABSTRACT Angular measurements of brightness temperature in the frequency range between 50 GHz and 70 GHz reproduce information of the vertical temperature profile in the atmosphere. It will be measured with two radiometers. One works in the freq

MICROWAVE IMAGES OF SUB-SURFACE UTILITIES IN AN URBAN ENVIRONMENT P.J. Richards and A.P. Anderson ABSTRACT - The principle of identifying concealed object shapes by microwave holography has become established in recent years. An important application would be the imaging of buried cables and pipes if the problem of the high attenuation of ground and the strong surface return could be over

CAPABILITY OF A MICROWAVE ACTIVE SPECTROMETER IN THE ,5-4GHz BAND Laszlo Szabo *and GUnther Perthen ** Abstract: The purpose of this paper is to document the performance characteristics and capabilities of the radar section of a ,5-4GHz Microwave Active Spectrometer system. The system will provide ground truth data for radar remote sensing (60and its dependence on look angle and polarization)

IMPROVED MICROWAVE RADIOMETRY FOR REMOTE SENSING* A. Leber and T. Flattau** ABSTRACT Significant improvements in the gain stability and overall performance of microwave radiometers have been achieved with the use of a selfbalancing gain modulation technique. This technique, in combination with automatic thermal calibration, is particularly well suited for remote sensing radiometric applicat